package midalgorithms.design;

public class _01Codec {
    // Encodes a tree to a single string.
    public String serialize(TreeNode root) {
        return null;
    }

    // Decodes your encoded data to tree.
    public TreeNode deserialize(String data) {
        return null;
    }
}
class TreeNode {
    int val;
    TreeNode left;
    TreeNode right;
    TreeNode(int x) { val = x; }
}
